Remember the good old days where you could bring your whole family across the border and enjoy everything our neighbouring country has to offer?

With the affordable prices of petrol, topping up your gas tank before coming back to Singapore was something no one would skip.

But there are some people who go a little too far to save a couple of dollars.

Like this! 😂

Which brings us to video below. I'm scratching my head as to why this driver is trying to ensure that every cubic meter of fuel is stored inside his car. Given that our petrol prices in Singapore are exorbitant now. 

Myth - Do I really save money if I am able to top up my car to the brim? 🤔

  Quote

Quora: Why do people shake their car while fully fueling their car's tank?

https://qr.ae/pGpOaX

While fuelling, the liquid passes through a filler pipe and into the actual tank. Filler pipes which attach to gas tanks are rarely straight and they almost never fill the tank from the top down. They also frequently contain check balls in them to prevent gas from sloshing out through the fill pipe to the gas cap. Because of this, air can get trapped either in the filler pipe or in the tank itself.

This is actually not a problem, and the additional amount of fuel you are adding is miniscule compare to the tank’s capacity. In addition, by topping off in this way, you are more likely to spill gas from the filler and cause gas to run into the small vapor recovery tube which leads to your charcoal canister.

In summary, when filling your own tank, when the automatic shutoff clicks off, just put the nozzle back on the pump, secure the gas cap and drive on. No shaking. No topping off. No spills. No worries.

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One of the Quora-ist mentions that it is insignificant to have the petrol tank pump to the brim.

My personal take on the matter

The whole shaking action is unnecessary.

Once you hear the nozzle click, it means that the next time you'll have to refuel would be in 5 to 6 days, give or take. Shaking the car does not mean you'll extend that time significantly.

Furthermore, over-filling your fuel tank could potentially result in damage to your vehicle’s charcoal cannister, which is part of its vapour recovery or Evaporative Recovery System.

If you really want to save fuel, drive like a saint and don't over-rev your car when driving. Always plan your route ahead and leave the house early so you will not drive like a madman. 

Peace out! ✌️